카노푸스 vs 리겔
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| Property | 카노푸스 | 리겔 |
|---|---|---|
| 명칭 | Alp Car | 19Bet Ori |
| 별자리 | N/A | Orion |
| 분광형 | Class F — F-type (Yellow-White) | Class B — B-type (Blue-White) |
| 겉보기 등급 | -0.62 | +0.18 |
| 절대 등급 | -5.50 | -6.93 |
| 거리 | 309 ly | 863 ly |
| 질량 | N/A | N/A |
| 반지름 | N/A | N/A |
| 온도 | N/A | N/A |
| 광도 | N/A | N/A |
Key Differences
- ◆ Canopus is an F-type bright giant; Rigel is a B-type blue supergiant — they differ greatly in spectral type.
- ◆ Both are extremely luminous: Canopus ~10,700 L☉ and Rigel ~120,000 L☉.
- ◆ Canopus is used for spacecraft navigation; Rigel is a landmark star in Orion.
- ◆ Rigel is hotter at ~12,100 K versus Canopus at ~7,400 K.
- ◆ Canopus is the second-brightest star in the sky; Rigel is the seventh-brightest.